body{
    padding: 0;
    margin: 0;
}
.men{
    width: 100%;
    margin: 0 auto;
    height: 900px;
}
.men .main_top{
    width: 100%;
    height: 50px;
}
.men .main_center{
    width: 100%;
    height: 800px;
}
.men .main_center .main_center_left{
    width: 25%;
    height: 800px;
    float: left;
    background-color: aqua;
}
.men .main_center .main_center_right{
    width: 70%;
    height: 800px;
    float: left;
}



